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Some chemical equations are give below: ...

Some chemical equations are give below:
`C + O_2 rarr CO_2`
`CH_4 + 2O_2 rarr CO_2 +H_2O`
`N_2 +O_2 rarr NO`
`CaCO_3 rarr CaO + CO_2`
`H_2 + I_2 rarr HI`
`Fe + HCl rarr FeCl_2 + H_2`
`CO + C rarr CO`
a) Which of these are balanced equations?
b) Balance the unbalanced equations.

Text Solution

Verified by Experts

a) .C + O_2 rarr CO_2.
.CH_4 + 2O_2 rarr CO_2 +H_2O.
.CaCO_3 rarr CaO + CO_2.
b) .N_2 +O_2 rarr 2NO.
.H_2 + I_2 rarr 2HI.
.Fe + 2HCl rarr FeCl_2 + H_2.
.CO_2 + C rarr 2CO.
c) .C + O_2 rarr CO_2.
.CH_4 + 2O_2 rarr CO_2 +H_2O.
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